i have seen Moz more times than I can account for and although I would love to see a Smith reunion Coachella isn't the place for it.
Morrissey has always needed more of a smaller venue in order to get him all fired up and into it.
besides, it's not like he and Marr would be high-fiving and all during the set, as they would probably be on opposite sides of the stage the whole time.
I think it would be a big letdown.
You want ot hear Smiths songs go see Moz.
You want to hear Marr's riffs go see him when he resurrects The Healers.